Mains Electricity
There is never any reason why you should be working with mains electricity supply - stay below 12v and even then take care.
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After this session you will be able to:
Come up and collect your component kit:
Come up and collect your components:
In electronic circuits, resistors are used to reduce current flow, adjust signal levels and divide voltages.
LEDs, being diodes, will only allow current to flow in one direction. And when there’s no current-flow, there’s no light. Luckily, this also means that you can’t break an LED by plugging it in backwards. Rather, it just won?t work.
Potentiometer is a small sized electronic component whose resistance can be adjusted manually. Increasing or decreasing the value of resistance controls the amount of current flowing in a circuit.
Rapid Prototyping Board
The ArduSat satellites are powered by the Arduino Uno. It follows cube satellite (CubeSat) standards to build compact 10 cm cubes that can easily be sent to orbit.
The robotic prototype swimming under water propelled by fins, it was developed at the Control Systems and Robotics Laboratory of the Technological Educational Institute of Crete, in Heraklion (Greece) and it’s controlled by an Arduino Mega.
Just another input / output controller
The Arduino can only process electronic signals. This means that stimuli from the physical world need to be transduced to electrical signals before they can be processed from within your code.
A more in depth version of what the Arduino Uno has to offer()
You can power the board using a USB port or DC power supply such as a 9v battery. The Arduino will default to the external power supply if there is one available.
What is the difference?
Serial communication on pins TX/RX uses TTL logic levels (5V or 3.3V depending on the board).
It communicates on digital pins 0 (RX) and 1 (TX) as well as with the computer via USB. Thus, if you use these functions, you cannot also use
pins 0 and 1 for digital input or output.
Serial is used for communication between the Arduino board and a computer or other devices.
Insure that you buy your components from UK sellers, especially on Ebay
See spec
The Arduino should be protected from reverse voltage of solenoids, relays, motors and any other component that use coils. This can be done using a Diode. They act as a one way valve to channel the electric back into the coils.
There is never any reason why you should be working with mains electricity supply - stay below 12v and even then take care.
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The Arduino language is merely a set of C/C++ functions that can be called from your code. Your sketch undergoes minor changes (e.g. automatic generation of function prototypes) and then is passed directly to a C/C++ compiler (avr-g++).